Decoding spatial precipitation patterns using artificial intelligence

Spatial Information Research - Trang 1-12 - 2023
Nita H. Shah1, Anupam Priamvada1, Bipasha Paul Shukla2
1Department of Mathematics, Gujarat University, Ahmedabad, India
2Atmospheric Sciences Division, Space Applications Centre, ISRO, Ahmedabad, India

Tóm tắt

The primary objective of this research is to examine the spatio-temporal variations in precipitation within the Indian Monsoon region (IMR), with a particular focus on regional relationships. This investigation utilizes rainfall data collected from rain gauge stations for the year 2020, a year marked by extreme weather events such as floods in Assam and Mumbai, Cyclone Amphan, and multiple cloud-bursts in the Western Himalayan regions. The time series analysis is conducted to find the precipitation patterns across six distinct geographical zones. A numerical association rule is formulated by leveraging both k-means clustering and Apriori techniques. The central finding of this study underscores the North Eastern region’s prominent co-occurrence pattern of rainfall events, particularly concerning lead days. Specifically, when there is rainfall in the preceding days, there is a notable likelihood of continued rainfall on the subsequent day. This prolonged and consecutive rainfall pattern, persisting for three successive days, emerges as a one of the major contributing factors to the flooding incidents experienced in these regions.

Tài liệu tham khảo

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